Daniel@0: function [train, test] = rnd_partition(data, train_percent);
Daniel@0: % function [train, test] = rnd_partition(data, train_percent);
Daniel@0: %
Daniel@0: % data(:,i) is the i'th example
Daniel@0: % train_percent of these columns get put into train, the rest into test
Daniel@0: 
Daniel@0: N = size(data, 2);
Daniel@0: ndx = randperm(N);
Daniel@0: k = ceil(N*train_percent);
Daniel@0: train_ndx = ndx(1:k);
Daniel@0: test_ndx = ndx(k+1:end);
Daniel@0: train =  data(:, train_ndx);
Daniel@0: test = data(:, test_ndx);